William clair toll



W. C. TOLL.

TONSILLOVTOME. APPLICATION FILED MAY 21. 1919.

Patented Sept. 16, 1919.

v JNVEN WILLIAM CLAIR TOLL, OF SIMGOE, ONTARIO, G ANADA.

TONSILLOIOME.

Specification of Letters Patent.

Patented Sept. 1c, 1919.

Application filed May 21, 1919. Serial No. 298,751.

I attain my object by means of the con- 1 structions illustrated in theaccompanying drawings in Which- Figure l is a plan view of the deviceshowing the half rings of the hemostat open; Fig. 2 a similar viewshowing the half rings closed;

Fig. 8 a side elevation showing the half rings closed; and

Fig. 4: an end view of the half rings and the semi-annular knife.

In the drawings like numerals of reference indicate corresponding partsin the different figures. p

The hemostat comprises two half rings G, which are formed on orconnected to the ends of bars I-I. These bars are provided with hingeknuckles A B, by means of p which they are hinged together. The hingepin is preferably formed by the handle C of the knife D. This knife isof semi-annular form, as shown and when rotated moves in shear fashionpast the inner faces of the half rings G. The outer ends of thej aws arepreferably halved together as shown and provided with a pivot F inalinement with the handle C. The knife also preferably engages thispivot F and is thus supported at its outer end. The other ends of thebars H are preferably bent up to form handles E. The end I of one handleis extended to form a resilient tongue adapted to be snapped into akeeper J formed on the end of the other handle. The bars H may thus belocked to retain the half rings G in the position shown in Figs. 2, 3and 4:. It will be noted that when the half rings are opened out asshown in Fig. 1 that a completely unobstructed fenestrum is formedthrough which the tonsil to be removed may protrude when the device ispositioned for use.

The device is used in the following man ner: In the first place theinstrument is opened as shown in Fig. 1 and by suitable manipulation thetonsil to be removed is forced into or through the half rings, which arethen folded together and locked. This procedure separates the tonsilfrom both the anterior and posterior faucial pillars and the superiorconstrictor pharyngeal muscle and crushes the connecting tissues,thereby securing hemostasis. The knife is then rotated by means of itshandle to remove the tonsil from the crushed stump.

With my instrument it will be found very much easier to completelyremove the tonsil without excessive hemorrhage than with the devices atpresent employed for this purpose.

What I claim as my invention is 1. In a tonsillotome, the combination ofa pair of substantially parallel bars hinged together and each having ahalf ring formed at one end, said half-rings being adapted to cooperateto form a hemostat and when open to form an unobstructed fenestrum.

2. In a tonsillotome, the combination of a pair of substantiallyparallel bars hinged together and each having a half ring formed at oneend, said half-rings being adapted to cooperate to form a hemostat; anda semiannular knife journaled concentric with the hinges of theaforesaid bars adapted to separate a tonsil from a crushed stump graspedby the half rings.

3. In a tonsillotome, the combination of a pair of substantiallyparallel bars hinged together and each having a half ring formed at oneend, said half-rings being adapted to cooperate to form a hemostat, benthandles on said bars; and means for releasably locking said handlestogether with the half rings in cooperative position.

4. A tonsillotome according to claim 2 in which the knife is providedwith an operat ing handle which forms also a hinge pin for the hinges ofthe bars carrying the half rings.

Signed at Simcoe this 16th day of May, 1919.

WILLIAM CLAIR TOLL.

Witnesses FRANK REID, ALEDA TUCKER.

topies'pt this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

